984 research outputs found

    Estudio bibliométrico de la investigación educativa en las universidades de Andalucía en el SSCI (2002-2010)

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    The ten Andalusian public universities have a total figure of 1312 professors linked to departments related to educational research. According to this, it could be said that there are enough research staff to make educational scientific production visible. Despite the fact that there are previous studies on Spanish educational production, these are not focused in Andalusia as a whole. The goal is to analyse the educational production, indexed in the Social Sciences Citation Index database (SSCI), carried out by researchers affiliated to some of the Andalusian universities. In particular, we analyse co-authorship patterns, diachronic production, language of the publication and the production per university. We utilize usual bibliometrical techniques for collecting and analysing data. We make the search in the SSCI from which we filter the information and download it. We used a local relational database made for this purpose. A standardization process of the author name and institution was made. An exponential rise of the production analysed is observed, partially due to the increment of educational journals that are indexed by the SSCI along the period studied. Spanish journals have the highest production rate. Likewise, a collaboration networks between Andalusian universities and others was revealed. The research articles are the 89.7% of the whole production analysed. The resulting collaboration index is slightly higher than others found in previous studies in the fields of Social Sciences and Education. In addition, it is shown that the collaboration among the Andalusian universities is low

    How equal is equality? Discussions about same-sex marriage in Portugal

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    In Portugal, public and political discussions about same-sex marriage have been going on since the 1990s. In 2010, same-sex marriage was legalized under intense dispute since it excludes same-sex couples from adoption and reproductive rights. During parliamentary debates, political parties and civil organizations linked to the Catholic Church resorted to conflicting ideas of ‘equality’ and ‘difference’ to advance their claims. In this article, we analyse the contents of petitions, bills and parliamentary proceedings concerning the legal recognition of same-sex unions, highlighting the presence of conflicting notions of equality linked to pervasive beliefs about the inadequacy of homo-erotic desire and practices

    Perspectives on the Trypanosoma cruzi-host cell receptor interaction

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    Chagas disease is caused by the parasite Trypanosoma cruzi. The critical initial event is the interaction of the trypomastigote form of the parasite with host receptors. This review highlights recent observations concerning these interactions. Some of the key receptors considered are those for thromboxane, bradykinin, and for the nerve growth factor TrKA. Other important receptors such as galectin-3, thrombospondin, and laminin are also discussed. Investigation into the molecular biology and cell biology of host receptors for T. cruzi may provide novel therapeutic targets

    Estudio bibliométrico de la investigación educativa en las universidades de Andalucía en el SSCI (2002-2010)

    Get PDF
    The ten Andalusian public universities have a total figure of 1312 professors linked to departments related to educational research. According to this, it could be said that there are enough research staff to make educational scientific production visible. Despite the fact that there are previous studies on Spanish educational production, these are not focused in Andalusia as a whole. The goal is to analyse the educational production, indexed in the Social Sciences Citation Index database (SSCI), carried out by researchers affiliated to some of the Andalusian universities. In particular, we analyse co-authorship patterns, diachronic production, language of the publication and the production per university. We utilize usual bibliometrical techniques for collecting and analysing data. We make the search in the SSCI from which we filter the information and download it. We used a local relational database made for this purpose. A standardization process of the author name and institution was made. An exponential rise of the production analysed is observed, partially due to the increment of educational journals that are indexed by the SSCI along the period studied. Spanish journals have the highest production rate. Likewise, a collaboration networks between Andalusian universities and others was revealed. The research articles are the 89.7% of the whole production analysed. The resulting collaboration index is slightly higher than others found in previous studies in the fields of Social Sciences and Education. In addition, it is shown that the collaboration among the Andalusian universities is low

    Probing host pathogen cross-talk by transcriptional profiling of both Mycobacterium tuberculosis and infected human dendritic cells and macrophages

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    This study provides the proof of principle that probing the host and the microbe transcriptomes simultaneously is a valuable means to accessing unique information on host pathogen interactions. Our results also underline the extraordinary plasticity of host cell and pathogen responses to infection, and provide a solid framework to further understand the complex mechanisms involved in immunity to M. tuberculosis and in mycobacterial adaptation to different intracellular environments

    Risk Factors and Characterization of Plasmodium Vivax-Associated Admissions to Pediatric Intensive Care Units in the Brazilian Amazon

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    BACKGROUND: Plasmodium vivax is responsible for a significant proportion of malaria cases worldwide and is increasingly reported as a cause of severe disease. The objective of this study was to characterize severe vivax disease among children hospitalized in intensive care units (ICUs) in the Western Brazilian Amazon, and to identify risk factors associated with disease severity. METHODS AND FINDINGS: In this retrospective study, clinical records of 34 children, 0-14 years of age hospitalized in the 11 public pediatric and neonatal ICUs of the Manaus area, were reviewed. P. falciparum monoinfection or P. falciparum/P. vivax mixed infection was diagnosed by microscopy in 10 cases, while P. vivax monoinfection was confirmed in the remaining 24 cases. Two of the 24 patients with P. vivax monoinfection died. Respiratory distress, shock and severe anemia were the most frequent complications associated with P. vivax infection. Ninety-one children hospitalized with P. vivax monoinfections but not requiring ICU were consecutively recruited in a tertiary care hospital for infectious diseases to serve as a reference population (comparators). Male sex (p = 0.039), age less than five years (p = 0.028), parasitemia greater than 500/mm(3) (p = 0.018), and the presence of any acute (p = 0.023) or chronic (p = 0.017) co-morbidity were independently associated with ICU admission. At least one of the WHO severity criteria for malaria (formerly validated for P. falciparum) was present in 23/24 (95.8%) of the patients admitted to the ICU and in 17/91 (18.7%) of controls, making these criteria a good predictor of ICU admission (p = 0.001). The only investigated criterion not associated with ICU admission was hyperbilirubinemia (p = 0.513)]. CONCLUSIONS: Our study points to the importance of P. vivax-associated severe disease in children, causing 72.5% of the malaria admissions to pediatric ICUs. WHO severity criteria demonstrated good sensitivity in predicting severe P. vivax infection in this small case series

    Development of an Orthotopic Human Pancreatic Cancer Xenograft Model Using Ultrasound Guided Injection of Cells

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    Mice have been employed as models of cancer for over a century, providing significant advances in our understanding of this multifaceted family of diseases. In particular, orthotopic tumor xenograft mouse models are emerging as the preference for cancer research due to increased clinical relevance over subcutaneous mouse models. In the current study, we developed orthotopic pancreatic cancer xenograft models in mice by a minimally invasive method, ultrasound guided injection (USGI) comparable to highly invasive surgical orthotopic injection (SOI) methods. This optimized method prevented injection complications such as recoil of cells through the injection canal or leakage of cells out of the pancreas into the peritoneal cavity. Tumor growth was monitored in vivo and quantified by ultrasound imaging weekly, tumors were also detected by in vivo fluorescence imaging using a tumor targeted molecular probe. The mean tumor volumes for the USGI and SOI models after 2 weeks of tumor growth were 205 mm3 and 178 mm3 respectively. By USGI of human pancreatic cancer cell lines, human orthotopic pancreatic cancer xenografts were established. Based on ultrasound imaging, the orthotopic human pancreatic cancer xenograft take rate was 100% for both human pancreatic cancer cell lines used, MiaPaCa-2 and Su86.86, with mean tumor volumes of 28 mm3and 30 mm3. We demonstrated that this USGI method is feasible, reproducible, facile, minimally invasive and improved compared to the highly-invasive SOI method for establishing orthotopic pancreatic tumor xenograft models suitable for molecular imaging
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